Update page references automatically

Kirby 2 Solved ✅
1

Hi,

I have a structure that stores references to siblings

  artistproject:
    label: Project
    type: select
    options: query
    query:
      fetch: siblings
      template: artistproject

When I now change the URL of one of the siblings, the stored reference will break. I am trying to fix this with the following hook:

kirby()->hook('panel.page.move', function($page, $oldPage) {
  $oldUid = $oldPage->uid();
  $newUid = $page->uid();
  $artistPages = site()->find('artists')->children();

  foreach($artistPages as $artistPage)
  {
    foreach($artistPage->children() as $artistProjectPage)
    {
      $rawContent = $artistProjectPage->content()->raw();
      str_replace($oldUid, $newUid, $rawContent);

      // and now?
      $media->save($rawContent); // ? !?!? 
    }
  }
});

The idea is to iterate trough the content of all relevant pages, replace the old reference and save the file. What am I missing?

Thank you!

2

That is a lot easier, all you have to do is update the field if the field contains the old value:

if($artistProjectPage->artistproject() == $oldUID) {
  $artistProjectPage->update(array(
    'artistproject' => $newUid,
  ));
}

https://getkirby.com/docs/cheatsheet/page/update

3

Thanks, that’s indeed a quite good answer. However, and I’m sorry for that, my question has some flaws.

I’ve written it, but didn’t include the yaml: I have a structure of page references, the full yaml is this:

  more:
    label: More
    type: structure
    style: table
    fields:
      artistproject:
        label: Project
        type: select
        options: query
        query:
          fetch: siblings
          template: artistproject

and also, I will have to update page references in other files, here is an example:

  featuredprojecttop:
    label: Featured Project Top
    type: select
    options: query
    query:
      page: artists
      fetch: grandchildren
      template: artistproject

That’s why I am looking for a general approach. I tried to get around dealing with the field names.

4

Then you probably have to use standard php methods to open, read and save the textfile.

5

Yep, okay. For anyone interested, it looks like this now:

kirby()->hook('panel.page.move', function($page, $oldPage) {
  $oldUid = $oldPage->uid();
  $newUid = $page->uid();
  $artistPages = site()->find('artists')->children();

  foreach($artistPages as $artistPage)
  {
    foreach($artistPage->children() as $artistProjectPage)
    {
      $rawContent = $artistProjectPage->content()->raw();
      $newContent = str_replace($oldUid, $newUid, $rawContent);

      $file = fopen($artistProjectPage->content()->root(), 'w');
      fwrite($file, $newContent);
      fclose($file);
    }
  }
});

Automatic updating of page references is something I would have suspected to be built in actually. Would be a cool feature! Thanks for the superfast support!